CN1220339C - Wireless pressure electromagnetic induction system - Google Patents

Abstract

The invention relates to a wireless pressure electromagnetic induction system, which at least comprises a first wireless device and a second wireless device, wherein the first wireless device and the second wireless device respectively at least comprise an induction circuit capable of transmitting and receiving electromagnetic wave signals with specific frequency; the second wireless device further comprises a specific frequency generation sub-circuit and a bidirectional signal transmission gating sub-circuit.

Description

Wireless pressure electromagnetic induction system

technical field

The present invention relates to a wireless pressure electromagnetic induction system, in particular to a wireless pressure electromagnetic induction system capable of transmitting and receiving specific frequencies.

Background technique

Since the handwriting recognition circuit device can replace the mouse, and is more suitable for the user to manually input characters and patterns than the mouse, the improvement of the handwriting recognition circuit device is a rapidly developing field in recent years. The earliest handwriting recognition circuit device can be regarded as replacing the mouse with a pen, and in order to improve the user's convenience, the mouse is usually replaced by both a wireless pen and a digital tablet (tablet), and the tip of the wireless pen is usually It corresponds to the left button of the mouse. Although traditional pen input products have been available for many years, similar products only focus on single-function applications such as drawing or Chinese input.

The current pen-type input product is usually a wireless pressure electromagnetic induction circuit device. Referring to FIG. 1, it is a circuit block diagram of an existing wireless electromagnetic induction device. The wireless pressure electromagnetic sensing device includes: a cordless pen and a tablet. There is an oscillating circuit composed of inductance and capacitance (LC) in the wireless pen. When the pen tip is touched, the inductance will change, so the oscillating frequency will also change accordingly. The greater the pressure on the pen tip, the greater the change in inductance, and thus the greater the change in the oscillation frequency. Therefore, the magnitude of the pressure applied to the pen tip can be known from the change in frequency. There are also two switch buttons on the side of the wireless pen. When the buttons are joined and separated, the capacitance in the LC oscillator changes to change the transmitting frequency of the pen. The switch button pressed by the user can be detected from the different frequency changes. In addition, the digital board (tablet) also includes components such as a detector (detector), an amplifier (Amplifier), and an analog-to-digital converter. The central area of this type of traditional handwriting tablet is an induction loop, and there are unidirectional antennas arranged equidistantly in an array on both sides of the induction loop. The main purpose of this one-way antenna loop is only to receive the electromagnetic wave signal emitted by the dedicated wireless pen. When the wireless electromagnetic pen emits electromagnetic waves, the one-way antenna will receive the electromagnetic waves and obtain relevant data through the digital board by means of electromagnetic induction. However, the traditional wireless pressure electromagnetic induction device only has the simple function of receiving the signal emitted by the peripheral device and detecting its position. Therefore, the present invention provides a new wireless pressure electromagnetic induction system in order to strengthen and increase the function of the wireless pressure electromagnetic induction device.

Contents of the invention

The purpose of the present invention is to provide a wireless pressure electromagnetic induction system, which can make the wireless pressure electromagnetic induction circuit system receive electromagnetic signals emitted by peripheral devices through an antenna bidirectional signal transmission gating control branch circuit, and also make the wireless pressure electromagnetic induction circuit The system can transmit electromagnetic wave signals of specific frequency to surrounding devices.

Another object of the present invention is to provide a wireless pressure electromagnetic induction system, which can transmit a specific frequency through a specific frequency generator to facilitate the two-way transmission antenna of the wireless pressure electromagnetic induction circuit device, and make the system with an induction coil storage circuit Peripheral circuits generate induced current and induced voltage, thereby achieving wireless charging performance.

In order to achieve the above object, according to one aspect of the present invention, there is provided an antenna signal transmission circuit for a wireless piezo-electromagnetic induction system, the wireless piezo-electromagnetic induction system includes an amplifier, a micro-controlling branch with an I/O control element circuit, and a specific frequency generation branch circuit, the antenna signal transmission circuit includes: a bidirectional transmission switch gating control branch circuit with a first transmission end, a second transmission end and a third transmission end, the first transmission end and The amplifier is electrically coupled, the second transmission terminal is electrically coupled with the output/input control element of the micro-control sub-circuit, and the third transmission terminal is electrically coupled with the specific frequency generation sub-circuit; an antenna selection switch controls branch circuit, the antenna selection switch control group is electrically coupled with the two-way transmission switch control branch circuit and several antennas; and an antenna position control bus, the antenna position control bus is connected with the micro control branch circuit, and the antenna selection switch The control branch circuit is electrically coupled.

According to another aspect of the present invention, there is provided a bidirectional transmission electromagnetic induction circuit for a wireless pressure electromagnetic induction system, the bidirectional transmission electromagnetic induction circuit for a wireless pressure electromagnetic induction system at least includes: a first programmable frequency divider device, the first programmable frequency divider is connected to a NAND gate; a second programmable frequency divider is connected to the first programmable frequency divider to form a first programmable frequency divider A node and a second node, wherein, the first node is a microcontroller connected to the wireless pressure electromagnetic induction system through a frequency control bus; a D-type flip-flop, the D-type flip-flop is connected to the second node ; a first one-way transmission gate, the first one-way transmission gate is connected to an amplifier of the wireless pressure electromagnetic induction system; an inverter, an input end of the inverter is connected to the first one-way transmission gate to form A third node, wherein, the third node is connected to the microcontroller through an output/input control signal terminal; a second one-way transmission gate, the second one-way transmission gate is connected to an output of the inverter terminal and the D-type flip-flop, wherein, the second one-way transmission gate and the first one-way transmission gate are connected to each other to form a fourth node; several bidirectional transmission antenna selection switch elements, the several bidirectional transmission antenna selection The switching element is connected to the fourth node, wherein the plurality of bidirectional transmission antenna selection switching elements are connected to the microcontroller through an antenna position control bus; The plurality of bidirectional transmission antennas are connected to select switch elements.

According to another aspect of the present invention, there is provided an inductive energy storage circuit for a wireless pressure electromagnetic induction system, the inductive energy storage circuit for a wireless pressure electromagnetic induction system includes: an induction coil, the induction coil is used for To receive an electromagnetic wave energy with a specific frequency and generate an induced current by the principle of electromagnetic induction; a first branch circuit, the first branch circuit is coupled to the induction coil to receive the induced current and perform a rectification function; a second branch A circuit, the second branch circuit is coupled to the first branch circuit to control the energy storage function; and an energy storage device, the energy storage device is coupled to the second branch circuit to store electric energy.

According to another aspect of the present invention, a wireless pressure electromagnetic induction circuit is provided, the wireless pressure electromagnetic induction circuit includes: a micro-control sub-circuit; a specific frequency generation sub-circuit, wherein the specific frequency sub-circuit and the micro-control sub-circuit Mutual coupling; an antenna bidirectional signal transmission gate control subcircuit, the antenna bidirectional signal transmission gate control subcircuit is electrically coupled with the micro control subcircuit and the specific frequency generation subcircuit; an antenna selection switch subcircuit, the antenna selection switch A sub-circuit is electrically coupled with the micro-control sub-circuit; and a two-way transmitting antenna loop is electrically coupled with the antenna selection switch sub-circuit. For a clearer understanding of the purpose, features and advantages of the present invention, the preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

Examples are described in detail.

Description of drawings

FIG. 1 is a schematic circuit block diagram of a conventional wireless electromagnetic induction device;

Fig. 2 is a schematic circuit block diagram of the wireless pressure electromagnetic induction circuit in the first preferred embodiment of the present invention;

FIG. 3 is a schematic circuit block diagram of a specific frequency generating circuit in a second preferred embodiment of the present invention;

4 is a schematic circuit block diagram of an antenna signal transmission circuit in a third preferred embodiment of the present invention;

5A is a schematic circuit block diagram of a bidirectional transmission electromagnetic induction circuit in a fourth preferred embodiment of the present invention;

5B is a circuit block diagram of a peripheral device with an inductive energy storage circuit in a fourth preferred embodiment of the present invention; and

FIG. 5C is a schematic circuit diagram of an inductive energy storage circuit in a fourth preferred embodiment of the present invention.

Detailed ways

The direction of the present invention discussed here is a wireless pressure electromagnetic induction system with a specific frequency generating branch circuit and an antenna bidirectional signal transmission gating control branch circuit. In order to provide a thorough understanding of the present invention, detailed fabrication steps or structural elements will be set forth in the following description. Obviously, the practice of the invention is not limited to specific details familiar to those skilled in the art of circuitry. On the other hand, well-known circuit elements have not been described in detail in order not to unnecessarily limit the invention. Preferred embodiments of the present invention will be described in detail as follows, but in addition to these detailed descriptions, the present invention can also be widely implemented in other embodiments, and the scope of the present invention is not limited by it, but by the claims The scope of the patent shall prevail.

Referring to Fig. 2, in the first embodiment of the present invention, a wireless pressure electromagnetic induction circuit 200 is firstly provided, and the wireless pressure electromagnetic induction circuit 200 at least includes: a micro-control branch circuit 210, for example, a microprocessor; The specific frequency generating sub-circuit 220, the specific frequency generating sub-circuit 220 is electrically coupled with the microcontroller sub-circuit 210, and the specific frequency generating sub-circuit 220 can be set to generate a fixed frequency range, wherein the specific frequency generating sub-circuit 220 Contain at least one programmable frequency divider (programmable frequency divider) and a flip-flop, for example, D-type flip-flop; An antenna two-way signal transmission gating control sub-circuit 230, the antenna two-way signal transmission gating control sub-circuit 230 is respectively connected with the microcontroller The branch circuit 210 and the specific frequency generating branch circuit 220 are electrically coupled, wherein the antenna bidirectional signal transmission gate control branch circuit 230 includes at least several unidirectional transmission gate control switch elements; an antenna selection switch branch circuit 240 is connected with the micro control branch circuit 210 is electrically coupled, wherein, the antenna selection switch branch circuit 240 at least includes an antenna position control bus (antenna address bus) and several antenna selection switch elements with bidirectional transmission; a bidirectional transmission antenna loop 250, a bidirectional transmission antenna loop 250 is electrically coupled with the antenna selection switch sub-circuit 240 .

With reference to Fig. 3 shown, in the second embodiment of the present invention, at first provide a specific frequency generating circuit 300 for the wireless pressure electromagnetic induction system, the specific frequency generating circuit 300 at least includes: a programmable frequency divider 310, can The programming frequency divider 310 is electrically coupled with a frequency control bus 320; a NAND gate (NAM) gate) 330, and the output terminal 330A of the NAND gate 330 is electrically coupled with the programmable frequency divider 310, wherein the NAM A first input terminal 330B of the gate 330 is a clock signal enabling terminal (Clock Enable) and a second input terminal 330C of the NAND gate 330 is a clock signal input terminal; a flip-flop 340, such as a D-type flip-flop, The flip-flop 340 is electrically coupled with the programmable frequency divider 310 , wherein the flip-flop 340 at least includes a specific frequency enabling terminal 340A and a specific frequency output terminal 340B. A micro control circuit of the wireless pressure electromagnetic induction input circuit device can set an eight-bit value and input it into the specific frequency generation branch circuit 300 through the frequency control bus 320, wherein the specific frequency range set above It at least includes between the clock signal /256 and the clock signal /1. For example, the clock signal is 6MHz, and the specific frequency generation range that can be set is 23.4375KHz to 6MHz. Then, the programmable frequency divider 310 performs a first frequency division function and generates a first specific frequency. Next, transmit the first specific frequency to the pulse wave input terminal of the flip-flop 340, so that the flip-flop 340 performs a second frequency division function and generates a second specific frequency, wherein the flip-flop 340 can enable the terminal 340A through the specific frequency The second frequency division function of the flip-flop 340 is controlled, and the specific frequency range of the second frequency division function at least includes between the clock signal /512 and the clock signal /2. Then, the second specific frequency is output from the flip-flop 340 through the specific frequency output terminal 340B.

Referring to FIG. 4 , in a third embodiment of the present invention, an antenna signal transmission circuit 400 for a wireless pressure electromagnetic induction circuit system is firstly provided. The antenna signal transmission circuit 400 at least includes: a bidirectional transmission switch gate control subcircuit 410, the first transmission end 410A of the bidirectional transmission switch gate control subcircuit 410 is electrically coupled with an amplifier of the wireless pressure electromagnetic induction circuit system to transmit signals to In the amplifier, the second transmission terminal 410B of the bidirectional transmission switch gate control branch circuit 410 is electrically coupled with an input/output (I/O) control element of a micro control subcircuit of the wireless pressure electromagnetic induction circuit system to control bidirectional transmission The transmission direction of the switch gating control sub-circuit 410, and the third transmission end 410C of the bidirectional transmission switch gating control sub-circuit 410 is electrically coupled with a specific frequency generating sub-circuit of the wireless pressure electromagnetic induction circuit system to receive a specific frequency, wherein , the bidirectional transmission switch gating control branch circuit 410 at least includes several unidirectional transmission gates with different transmission directions; an antenna selection switch control group 420, the antenna selection switch control group 420 is connected with the bidirectional transmission switch gating control subcircuit 410 and Several antennas 430 are electrically coupled, wherein the antenna selection switch control group 420 includes at least several antenna selection switch control elements capable of bidirectional transmission, and each antenna selection switch control element capable of bidirectional transmission can control at least eight antennas; an antenna Position control bus (antenna address bus) 440, the antenna position control bus 440 is electrically coupled with the micro-control sub-circuit of the wireless pressure electromagnetic induction circuit system and the antenna selection switch control group 420, so that the micro-control sub-circuit can be turned on at regular intervals Antenna, and then make the specific frequency signal to be transmitted through the antenna 430.

Referring to Fig. 5A and Fig. 5B, in the fourth embodiment of the present invention, a wireless pressure electromagnetic induction device 500 with a two-way transmission electromagnetic induction circuit 500A is first provided, for example, a handwriting tablet, and an inductive energy storage circuit 500B wireless electromagnetic induction peripheral devices, such as wireless electromagnetic pens. The bidirectional transmission electromagnetic induction circuit 500A of the wireless pressure electromagnetic induction device at least includes a specific frequency generating device 510 , an antenna bidirectional signal transmission gate control device 515 , an antenna selection switch device 520 and a bidirectional transmission antenna 525 . Wherein, the specific frequency generating device 510 is electrically coupled with the microcontroller 505 of the wireless pressure electromagnetic induction device, and the specific frequency generating device 510 can be set to generate a fixed frequency range. In addition, the antenna bidirectional signal transmission gate control device 515 is electrically coupled to the microcontroller 505 and the specific frequency generating device 510 respectively. In addition, the antenna selection switch device 520 is electrically coupled with the microcontroller device 505 . On the other hand, the two-way transmitting antenna 525 is electrically coupled to the antenna selection switch device 520 and the microcontroller 505 respectively.

5A, in this embodiment, the above-mentioned specific frequency generating device 510 includes at least: a first programmable frequency divider 530A and a second programmable frequency divider 530B, the first programmable frequency divider The device 530A is electrically coupled with a second programmable frequency divider 530B to form a first node 530C and a second node 530D, wherein the first node 530C is electrically connected to the microcontroller 505 through a frequency control bus 505A Coupling; a NAND gate (NAND gate) 540, the output terminal 540A of the NAND gate 540 is electrically coupled with the first programmable frequency divider 530A, wherein a first input terminal 540B of the NAND gate 540 is one A pulse signal enabling terminal and a second input terminal 540C of the NAND gate 540 is a clock signal input terminal; a D-type flip-flop 545, the D-type flip-flop 545 is electrically coupled with the second node 530D, wherein the D-type The flip-flop 545 includes at least a frequency-specific enabling terminal 545A and a frequency-specific output terminal 545B.

As shown in FIG. 5A, in this embodiment, the above-mentioned antenna two-way signal transmission gate control device 515 at least includes: a first one-way transmission gate 550A, a first transmission end of the first one-way transmission gate 550A is connected to the wireless An amplifier 555 of the pressure electromagnetic induction device is electrically coupled; an inverter (NOT gate; NOT gate) 560, an input end of the inverter 560 is electrically connected to a second transmission end of the first one-way transmission gate 550A coupled to form a third node 565A, wherein the third node 565A is electrically coupled with the input/output (I/O) control signal terminal 505B of the microcontroller 505; a second one-way transmission gate 550B, a second one-way transmission gate A first transmission end of the transfer gate 550B is electrically coupled to an output end of the inverter 560, and a second transmission end of the second one-way transmission gate 550B is connected to a specific frequency output end of the D-type flip-flop 545 545B is electrically coupled, and a third transmission terminal of the second one-way transmission gate 550B is electrically coupled with a third transmission terminal of the first one-way transmission gate 550A to form a fourth node 565B, wherein the second one-way transmission gate The gating direction to the transmission gate 550B is opposite to that of the first one-way transmission gate 550A.

As shown in FIG. 5A, in this embodiment, the above-mentioned antenna selection switch device 520 includes at least six bidirectional transmission antenna selection switch elements, and a first transmission end of the antenna selection switch device 520 is a gate control device for two-way signal transmission with the antenna. The fourth node 565B of the 515 is electrically coupled, and a second transmission end of the antenna selection switch device 520 is electrically coupled with the microcontroller 505 through an antenna position control bus (antenna address bus) 505C, wherein each bidirectional transmission The antenna selection switch element controls eight antennas. In addition, the above-mentioned two-way transmission antenna 525 includes at least forty-eight antennas, and the two-way transmission antenna 525 is electrically coupled to the two-way transmission antenna selection switch of the antenna selection switch device 520 respectively.

Referring to FIG. 5B and FIG. 5C, in this embodiment, the inductive energy storage circuit 500B of the wireless electromagnetic induction peripheral device at least includes: an induction coil 570, a rectifier branch circuit (Rectifier) 575, and an energy storage control branch circuit 580. and an energy storage device 585, such as a rechargeable battery, wherein the induction coil 570 is electrically coupled with the rectifier branch circuit (Rectifier) 575, and the rectifier branch circuit (Rectifier) 575 is electrically coupled with the energy storage control branch circuit 580, And the energy storage control branch circuit 580 is electrically coupled with the energy storage device 585 . In addition, the rectifier branch circuit (Rectifier) 575 includes at least: a diode (Diode) 590, one end of the diode 590 is electrically coupled with a first transmission end of the induction coil 570 to form a fifth node 575A; a capacitor 595, the capacitor One end of the diode 595 is electrically coupled with the other end of the diode 590 to form a sixth node 575B, wherein the sixth node 575B is electrically coupled with the energy storage control branch circuit 580; a first resistor 598A, the first resistor 598A One end is electrically coupled to the fifth node 575A, and the other end of the first resistor 598A is electrically coupled to a second transmission end of the induction coil 570 to form a seventh node 575C, wherein the seventh node 575C is connected to the capacitor The other end of the second resistor 595 is electrically coupled to a second resistor 598B, one end of the second resistor 598B is electrically coupled to the sixth node 575B, and the other end of the second resistor 598B is electrically coupled to the seventh node 575C.

Referring to Fig. 5A to Fig. 5C, in this embodiment, when the wireless electromagnetic induction peripheral device is placed within a specific range of the surrounding environment of the wireless pressure electromagnetic induction device, it can pass the wireless piezoelectric sensor with an eight-bit value set. The microcontroller 505 of the magnetic induction device inputs the frequency to the specific frequency generator 510 through the frequency control bus 505A to control the first programmable frequency divider 530A and the second programmable frequency divider 530B. The frequency range at least includes between the clock signal/256 and the clock signal/1. The clock signal input terminal 540C and the clock signal enabling terminal 540B input a clock signal into the NAND gate 540 and the NAND gate 540 outputs a frequency accordingly to the first programmable frequency divider 530A. Then, the first programmable frequency divider 530A and the second programmable frequency divider 530B perform a first frequency division procedure according to the eight-bit value input from the frequency control bus 505A to generate a first specific frequency. Then, transmit the first specific frequency to the pulse wave input terminal of the D-type flip-flop 545, so as to perform a second frequency division process through the D-type flip-flop 545 and generate a second specific frequency, wherein the specific frequency enabling terminal 545A The second frequency division procedure of the D-type flip-flop 545 can be controlled.

Then, the second specific frequency is output from the D-type flip-flop 545 to the second one-way transmission gate 550B of the antenna two-way signal transmission gate control device 515 through the specific frequency output terminal 545B, wherein the microcontroller 505 of the wireless pressure electromagnetic induction device The first one-way transmission gate 550A and the second one-way transmission gate 550B are controlled through an output/input (I/O) control signal terminal 505B. When the first one-way transmission gate 550A is opened, the second one-way transmission gate 550B is closed, so the transmission direction of the first one-way transmission gate is the receiving direction. In contrast, when the second one-way transmission gate 550B is opened, the first one-way transmission gate 550A is closed, that is, the second one-way transmission gate 550B is opened to allow the second specific frequency to be transmitted to the antenna selection switch through the second node 565B In the device 520, therefore, the transmission direction of the second one-way transmission gate 550B is the transmission direction. Simultaneously, the microcontroller 505 of the wireless pressure electromagnetic induction device regularly turns on each two-way transmission antenna selection switch of the antenna selection switch device 520 through the antenna position control bus 505C, thereby enabling the two-way transmission antenna 525 to transmit a second specific frequency electromagnetic waves. When the wireless pressure electromagnetic induction device transmits the electromagnetic wave with the second specific frequency to the specific range of the surrounding environment, the induction coil 570 of the wireless electromagnetic induction peripheral device will receive the electromagnetic field change caused by the electromagnetic wave with the second specific frequency, and according to the electric The principle of magnetic induction further generates an induced current. Subsequently, the induced current is transmitted to the rectification circuit 575, and the current is transmitted to the rechargeable battery 585 through the charging control circuit 580, so as to achieve the purpose of charging the wireless electromagnetic induction peripheral device.

In addition, when the two-way transmitting antenna 525 of the wireless piezo-electromagnetic sensing device is in the receiving state, the microcontroller 505 of the wireless piezo-electromagnetic sensing device controls the first one-way transmission gate 550A through the input/output (I/O) control signal terminal 505B. is turned on and the second one-way transmission gate 550B is turned off. At the same time, the microcontroller 505 of the wireless pressure electromagnetic induction device regularly turns on each two-way transmission antenna selection switch of the antenna selection switch device 520 through the antenna position control bus 505C, thereby enabling the two-way transmission antenna 525 to receive electromagnetic wave signals with a specific frequency . Since only at least one two-way transmitting antenna 525 needs to be turned on at the same time, it only needs to detect a larger signal amplitude on one antenna to know the position of the specific wireless electromagnetic induction peripheral device on the antenna.

As mentioned above, in the embodiment of the present invention, the present invention can enable the wireless pressure electromagnetic induction circuit system to receive electromagnetic signals emitted by peripheral devices through an antenna bidirectional signal transmission gate control circuit, and also enable the wireless pressure electromagnetic induction circuit system to receive The electromagnetic wave signal of a specific frequency is transmitted to peripheral devices through the specific frequency generating circuit. In addition, the present invention uses a two-way transmission antenna as the transmitting end of the electromagnetic wave energy of a specific frequency generated by the wireless pressure electromagnetic induction circuit system, and causes changes in the electromagnetic field, so that the peripheral circuit with the induction coil storage circuit generates an induced current and The induced voltage is used to achieve the performance of wireless charging. Therefore, the present invention can meet economic benefits and industrial applicability.

Of course, the present invention may also be used in any charging device with electromagnetic induction, in addition to the possible application in the wireless pressure electromagnetic induction system. Moreover, the present invention uses a bidirectional signal transmission gate control circuit and a specific frequency generating circuit to generate a specific frequency, which has not yet been developed and used in the wireless pressure electromagnetic induction circuit system.

Obviously, according to the description in the above embodiments, the present invention may have many modifications and differences. It is therefore to be understood, within the scope of the appended claims, that the invention may be practiced broadly in other embodiments than the foregoing detailed description.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention; all other equivalent changes or equivalent replacements that do not deviate from the spirit disclosed in the present invention should be included in the claims within the scope of the patent application as defined in the book.

Claims (22)

1. An antenna signal transmission circuit for a wireless pressure electromagnetic induction system, characterized in that the wireless pressure electromagnetic induction system includes an amplifier, a micro-control sub-circuit with an output/input control element, and a specific frequency generator A branch circuit, the antenna signal transmission circuit includes: A bidirectional transmission switch gate control subcircuit having a first transmission terminal, a second transmission terminal and a third transmission terminal, the first transmission terminal is electrically coupled to the amplifier, the second transmission terminal is connected to the micro control subcircuit The output/input control element is electrically coupled, and the third transmission end is electrically coupled with the specific frequency generating branch circuit; An antenna selection switch control subcircuit, the antenna selection switch control group is electrically coupled with the bidirectional transmission switch control subcircuit and the plurality of antennas; and An antenna position control bus, the antenna position control bus is electrically coupled with the micro control sub-circuit and the antenna selection switch control sub-circuit. 2. The antenna signal transmission circuit for a wireless pressure electromagnetic induction system according to claim 1, wherein the bidirectional transmission switch gating control branch circuit is electrically coupled to the micro-controlling branch circuit of the wireless pressure electromagnetic induction circuit system , for receiving the first control signal. 3. The antenna signal transmission circuit for wireless pressure electromagnetic induction system according to claim 1, characterized in that, the above-mentioned bidirectional transmission switch gating control branch circuit couples the specific frequency generation branch circuit of the wireless pressure electromagnetic induction circuit system to The clock signal with a specific frequency is received. 4. The antenna signal transmission circuit for a wireless pressure electromagnetic induction system as claimed in claim 1, wherein the bidirectional transmission switch gate control branch circuit includes several one-way transmission gates with different transmission directions. 5. The antenna signal transmission circuit for a wireless pressure electromagnetic induction system as claimed in claim 1, wherein said antenna selection switch control branch circuit includes several antenna selection switch control elements capable of bidirectional transmission. 6. The antenna signal transmission circuit for a wireless pressure electromagnetic induction system as claimed in claim 1, wherein the antenna position control bus controls several antenna selection switch control elements capable of bidirectional transmission. 7. A bidirectional transmission electromagnetic induction circuit for a wireless pressure electromagnetic induction system, characterized in that the bidirectional transmission electromagnetic induction circuit for a wireless pressure electromagnetic induction system at least includes: A first programmable frequency divider connected to a NAND gate; a second programmable frequency divider connected to the first programmable frequency divider and forming a first node and a second node, wherein the first node is formed by A frequency control bus is connected to the micro-control sub-circuit of the wireless pressure electromagnetic induction system; a D-type flip-flop connected to the second node; a first one-way transmission gate connected to the amplifier of the wireless piezo-electromagnetic induction system; An inverter, an input end of the inverter is connected to the first unidirectional transmission gate to form a third node, wherein the third node is connected to the microcontroller branch through an output/input control signal terminal circuit; A second one-way transmission gate, the second one-way transmission gate is connected to an output end of the inverter and the D-type flip-flop, wherein the second one-way transmission gate is connected to the first one-way transmission gate to form a fourth node; Several bidirectional transmission antenna selection switch elements, the several bidirectional transmission antenna selection switch elements are connected to the fourth node, wherein the several bidirectional transmission antenna selection switch elements are connected to the micro control branch circuit through the antenna position control bus; as well as A plurality of bidirectional transmission antennas are respectively connected with the selection switching elements of the plurality of bidirectional transmission antennas. 8. The two-way transmission electromagnetic induction circuit for a wireless pressure electromagnetic induction system according to claim 7, wherein the gating direction of the first one-way transmission gate is the receiving direction. 9. The two-way transmission electromagnetic induction circuit for a wireless pressure electromagnetic induction system according to claim 7, wherein the gating direction of the second one-way transmission gate is the emission direction. 10. The bidirectional transmission electromagnetic induction circuit for a wireless pressure electromagnetic induction system as claimed in claim 7, wherein each of the plurality of bidirectional transmission antenna selection switch elements can control at least eight bidirectional transmission antennas. 11. An inductive energy storage circuit for a wireless pressure electromagnetic induction system, characterized in that the inductive energy storage circuit for a wireless pressure electromagnetic induction system comprises: An induction coil, which is used to receive an electromagnetic wave energy with a specific frequency and generate an induced current by the principle of electromagnetic induction; a first branch circuit coupled to the induction coil to receive the induced current and perform a rectification; a second subcircuit coupled to the first subcircuit to control energy storage; and An energy storage device coupled to the second branch circuit for storing electrical energy. 12. The inductive energy storage circuit used in a wireless pressure electromagnetic induction system as claimed in claim 11, wherein the first branch circuit includes a rectification branch circuit. 13. The inductive energy storage circuit for a wireless pressure electromagnetic induction system as claimed in claim 12, wherein the above-mentioned rectifying branch circuit comprises: a diode, one end of the diode is coupled to a first transmission end of the induction coil to form a first node; a capacitor, one end of the capacitor is coupled to the other end of the diode to form a second node, wherein the second node is electrically coupled to the second branch circuit; a first resistor, one end of the first resistor is coupled to the first node, and the other end of the first resistor is coupled to a second transmission end of the induction coil to form a third node, wherein the third node is coupled to the capacitor the other end of the A second resistor, one end of the second resistor is coupled to the second node, and the other end of the second resistor is coupled to the third node. 14. The inductive energy storage circuit for wireless pressure electromagnetic induction system as claimed in claim 11, wherein the energy storage device comprises a rechargeable battery. 15. A wireless pressure electromagnetic induction circuit, characterized in that the wireless pressure electromagnetic induction circuit comprises: A microcontroller sub-circuit; A specific frequency generating sub-circuit, wherein the specific frequency sub-circuit and the micro-controlling sub-circuit are mutually coupled; An antenna bidirectional signal transmission gate control subcircuit, the antenna bidirectional signal transmission gate control subcircuit is electrically coupled with the micro control subcircuit and the specific frequency generation subcircuit; an antenna selection switch subcircuit electrically coupled to the micro control subcircuit; and A two-way transmission antenna loop, the two-way transmission antenna loop is electrically coupled with the antenna selection switch branch circuit. 16. The wireless piezo-electromagnetic induction circuit as claimed in claim 15, wherein the micro-control branch circuit is a microprocessor. 17. The wireless pressure electromagnetic induction circuit according to claim 15, characterized in that, the specific frequency generating branch circuit comprises: a programmable frequency division element electrically coupled to a frequency control bus; A NAND gate, the NAND gate has an output terminal, a first input terminal and a second input terminal, wherein the output terminal is electrically coupled with the programmable frequency division element and the first input terminal is a clock The signal enabling terminal and the second input terminal are a clock signal input terminal; A flip-flop electrically coupled with the specific frequency generating branch circuit. 18. The wireless pressure electromagnetic induction circuit as claimed in claim 17, wherein the specific frequency generating branch circuit is a programmable frequency dividing element. 19. The wireless pressure electromagnetic sensing circuit according to claim 17, wherein the trigger is a D-type trigger. 20. The wireless pressure electromagnetic induction circuit as claimed in claim 17, wherein the trigger comprises a specific frequency enable terminal and a specific frequency output terminal. 21. The wireless piezo-electromagnetic induction circuit as claimed in claim 15, wherein the antenna bidirectional signal transmission gating sub-circuit comprises several unidirectional transmission gating switching elements. 22. The wireless piezo-electromagnetic induction circuit as claimed in claim 15, wherein the antenna selection switch branch circuit comprises an antenna position bus and several antenna selection switch elements with bidirectional transmission.

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